Don't warn missing java.lang.instrument for release build with Java coverage on

Compile release build will fail with Java coverage on.


Bug: 988116
Change-Id: I37770bdb07c4915b3071db7e7096b4271c859760
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1721952Reviewed-by: Sam Maier <smaier@chromium.org>
Reviewed-by: Andrew Luo <aluo@chromium.org>
Commit-Queue: Yun Liu <yliuyliu@google.com>
Cr-Commit-Position: refs/heads/master@{#684185}

third_party/jacoco/BUILD.gn

@@ -21,6 +21,7 @@ java_prebuilt("jacocoagent_java") {
   include_java_resources = true
   supports_android = true
   jar_path = "lib/jacocoagent.jar"
+  proguard_configs = [ "jacoco_instrument.flags" ]
 }
 
 java_prebuilt("jacocoant_java") {

third_party/jacoco/OWNERS

 agrieve@chromium.org
-bjoyce@chromium.org
 aluo@chromium.org
+bjoyce@chromium.org
+yliuyliu@google.com
 yzjr@chromium.org

third_party/jacoco/README.chromium

-Name: Jacoco
+Name: JaCoCo
 URL: http://central.maven.org/maven2/org/jacoco/jacoco/0.8.3/
 Version: 8.3.2
 License: EPL 1.0
@@ -7,4 +7,4 @@ Security Critical: no
 License Android Compatible: no
 
 Description:
-Jacoco is a java code coverage tool.
+JaCoCo is a Java code coverage tool.

third_party/jacoco/jacoco_instrument.flags

+# This package is only used when Java coverage is enabled.
+# JaCoCo libraries contain all dependencies so we can ignore warning here.
+-dontwarn java.lang.instrument.**